<span>Solve for x over the real numbers:
40^x = 15
Hint: | Eliminate the exponential from the left hand side.
Take the logarithm base 40 of both sides:
Answer: x = log(15)/log(40)</span>
40 because it seems to go up by 10's and only by one of the number it goes up
A store advertises "Buy one and get one half off"
Which means if we buy one, half the price of one will be discounted.
In other words "50% discount on each item we buy"
Original cost of skates = $88
After 50% discount price of one skate = $88 - $44 = $44
Cost of 10 pairs of skates = 44 × 10
= $440
Therefore, we will pay $440 for 10 skates.
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Whenever you read a problem that involves "how fast", "how far", or "for how long", you should think of the distance equation, d = rt, where d stands for distance, r stands for the (constant or average) rate of speed, and t stands for time.
2.5m 15 feet 12/5=2.5 and 75/5=15